When I type 5 × tan(65) into my calculator, I get -7.35. Edit: My calculator was set to radians. If you're having the same issue, you may be able to change the calculator mode to degrees by pressing the "mode" button and selecting "degree." Alternatively, you can multiply the angle by 0.0174532924 (or π/180) to convert it to radians. radians = degrees × π ÷ 180 degrees = radians × 180 ÷ π
I love you Sal Khan! So much I learned in just 3 minutes compared to learning NOTHING in 3 classes of Algebra and even reading the book! Thank you so much!
ok so i took my first trig test today and i totally forgot how to do this and froze up and im pretty sure i failed and now that i look at this video i feel so dumb cause its the easiest thing :(
Fantastic!!! I am getting into game development and it has been so hard to find what i needed. This video was perfect. Showed me how to rearrange an equation in order to solve for my needed value. Thank you so much!!!!
I had the exact same issue, my friend. I have a TI-84 graphing calculator. The default MODE has trigonometric functions set to be in Radians. Though Radians is the unit standard, Khan Academy is doing the equations in Degrees. I sadly had to figure this out on my own, and had to suffer getting the first question wrong of the practice problem as well. Simply go into mode and change the setting from Radians to Degrees and you will get the correct answer.
Glad to know I'm not the only one who tries to use the side with the exact & simple length that was given as opposed to my convoluted and shortened ones
Hi... My question is : Is it possible to find height and length (or one of these) of a right angle triangle if we are given only an angle (say 35 degrees) of the triangle? (Without googling on internet!!) E.g I know the angle of a satellite (say) AsiaSat 105.5deg E is 34deg (angle of elv) and want to find the height and distance of this satellite from the Earth? Thank's
I tried checking it by finding (b) first so i just wrote down 11.8 there then I tried finding (a) to check it, when I used sin=opp/hyp so what i did was 11.8×sin65=a/11.8×11.8 so I canceled 11.8 of a/11.8 (11.8×sin65=a) then the answer was 10.6944318866.
Hi!!, a question. lm confused. u said that "5" is adjacent and "a" opposite to angle "Y", so that will make "b" the hypotenuse. is that correct?, because as far as l know, the hypotenuse never touch its angle. would u please clear things out to me?
can one find a side length using the 90 degree right angle instead of the other two unknown angles? and if you can, which side is opp and adj since thaida is resting on the right angle?
He multipled the fraction (a/5) by 5 so that it cancelled the 5 in the denominator out. EX.) a/5 times 5/1 equals 5a/5. The five in the numerator and the five in the denominator cancel each other out, leaving you with (a) left over.
Water Bottle because for tan it’s opp divided by adj and the adj had already been given so you only needed to find the opp. For cos you divide the adj by the hyp but we were given the adj and not the hyp, so you needed to solve for the hyp. sorry that no one answered your question until a year later 😔
I can't seem to understand how to know to divide it by 5 and how did you do that in the second problem what did you do to 5/b to make it to b=5/cos(65) am so slow plz help me did you inter change it???
Avery Engstrom Oh ok, if that's the case then here: www.quora.com/How-do-I-do-a-trigonometry-question-without-a-calculator it explains pretty well on how to calculate a trigonometric function without the use of a calculator.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company. The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee. I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
I did the pythagorean theorem to solve for B you said add 5 square to 10.7 square and i got 25 + 21.4 = 46.4 i cant seem to figure out how to get 11.8 using the pythagorean theorem .. HELP !
Domain is all the x-coordinates. Range is all the Y-coordinates.. For example, look at the following sets of ordered pairs. (3,6) (9,2) (4,5) (0,1) So the domains are:- 3,9,4,and 0 And the ranges are:- 6,2,5,and 1
I’m just amazed with how well he can draw with a mouse tbh
mee too
I think he uses a graphics pad
I formally retract my amazement
@@renzelpretzels 😂
im pretty sure he is using a graphics tablet
When I type 5 × tan(65) into my calculator, I get -7.35.
Edit:
My calculator was set to radians. If you're having the same issue, you may be able to change the calculator mode to degrees by pressing the "mode" button and selecting "degree." Alternatively, you can multiply the angle by 0.0174532924 (or π/180) to convert it to radians.
radians = degrees × π ÷ 180
degrees = radians × 180 ÷ π
Thank you so much
I love you Sal Khan! So much I learned in just 3 minutes compared to learning NOTHING in 3 classes of Algebra and even reading the book! Thank you so much!
Im so glad that some people like you try to make a difference
ok so i took my first trig test today and i totally forgot how to do this and froze up and im pretty sure i failed and now that i look at this video i feel so dumb cause its the easiest thing :(
+Naja929 I know the exact feeling. Trig is so easy but if you forget the simplest things... it's over.
It’s just anxiety. You’re not dumb at all. You just need to manage your nerves.
Fantastic!!! I am getting into game development and it has been so hard to find what i needed. This video was perfect. Showed me how to rearrange an equation in order to solve for my needed value. Thank you so much!!!!
This helps so much, and not just in math. When you get to 2d kinematics in physics, this becomes your best friend
Oh you are a saviour! I honestly didn't get a word on what my teacher said about trigonometry. It's all so clear now.
6:06 is when they start to show you how to solve angles
thank you
Thanks so much 🙏
you are an angel
Good man
when I multiply 5 with Tan 65 I get -7.35. What am I doing wrong?
are you using a graphing calculator? make sure your calculator is in the right mode.
I had the exact same issue, my friend.
I have a TI-84 graphing calculator. The default MODE has trigonometric functions set to be in Radians. Though Radians is the unit standard, Khan Academy is doing the equations in Degrees. I sadly had to figure this out on my own, and had to suffer getting the first question wrong of the practice problem as well. Simply go into mode and change the setting from Radians to Degrees and you will get the correct answer.
Change your calculator mode into Degree mode"Shown as DRG in your calculator"
Stephen Sagarino g
Probably because you are in radians and Khan is in degrees
With COVID-19 prompting school closures,Khan Academy is the only place i can learn math now.
Thank you so much
little would you know that were now in a multiple month lockdown 10 months later
try the organic chemistry tutor
omg that calculator is frightening
+Boris Lazic What kind of calculator do you use? :v
Bless this channel
how do you know whether to multiply or divide
@@nyct0phile really late
@@kevokev4009 lol whatever it might help someone else :)
@@nyct0phile it's just funny lol
SAL KHAN YOU LEGEND.
Glad to know I'm not the only one who tries to use the side with the exact & simple length that was given as opposed to my convoluted and shortened ones
Hi... My question is :
Is it possible to find height and length (or one of these) of a right angle triangle if we are given only an angle (say 35 degrees) of the triangle? (Without googling on internet!!)
E.g I know the angle of a satellite (say) AsiaSat 105.5deg E is 34deg (angle of elv) and want to find the height and distance of this satellite from the Earth?
Thank's
Thankyou so much!
Dude honestly you're the greatest
MY HERO!!!! MY KNIGHT IN SHINING ARMOR!!! Thank you!!!
Everyone saying they get this:😃😃😃
Me who still doesn’t have a clue:☹️
you know, i understand it besides the part where somewhow 5*tan(65deg) = 10.7, like HOW DOES THAT WORK?!
I have a quiz tom and this helped me thank you sir 😀
i have a trig test 2morrow this help aLOTTT THANK YOU
I wish I watched this video before I took my test today 😳
thank you! :D
I’ve watched this video numerous times and I still don’t get it
Thank you so much. Hopefully won't fail Algebra II now
THANK YOU!!!!!!!
I WOULD'VE FAILED MY EIGHTH GRADE FINAL IF IT WASN'T FOR THIS
THANK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
I'm in tenth grade and still struggle with math. Thank you so much.
Helped me so much!! Thank u!
pls help me with trigignometry . More videos please !!!
I tried checking it by finding (b) first so i just wrote down 11.8 there then I tried finding (a) to check it, when I used sin=opp/hyp so what i did was 11.8×sin65=a/11.8×11.8 so I canceled 11.8 of a/11.8 (11.8×sin65=a) then the answer was 10.6944318866.
Thank you!
Wow! Thank you!!!!!!
i was meh i know this part at 0:21 then skip to 3:01 my eyes grew😲
my class was muted because of a glitch and this helped alot thanks
This just saved my life! Thank you so much!
what app were you using to get the calculator used for this equation?
thanks
When do we use inverse tan,sin,cos?
@@loisjane8945 he means in the real world
Thank you :)
Hi!!, a question. lm confused. u said that "5" is adjacent and "a" opposite to angle "Y", so that will make "b" the hypotenuse. is that correct?, because as far as l know, the hypotenuse never touch its angle. would u please clear things out to me?
The hypotenuse can never touch the RIGHT angle, hope that clears stuff up.
The Hypotenuse is always opposite to the right angle.
Awesome :D
I OWE YOU MY LIFE FOR THIS
way better than how my teachers teach
thanks coronavirus for the cool virtual class
When I am doing the same equation of 5 tan 65 i am not getting the right answer and getting -7.35 plz help
thank so much.
can one find a side length using the 90 degree right angle instead of the other two unknown angles? and if you can, which side is opp and adj since thaida is resting on the right angle?
Without KA, I'd be failing air thing right now. they're legit lifesavers
this rlly helps but I'm doing just the same as you've done on your calculator n i keep getting 8. 159....etc
thanks, really helpful m8
yo
When I multiply 5 times the tangent of 65 degrees, I get 445.6. My ti84 plus is in degrees mode.
How did he isolate a at 2:09?
He multipled the fraction (a/5) by 5 so that it cancelled the 5 in the denominator out.
EX.) a/5 times 5/1 equals 5a/5. The five in the numerator and the five in the denominator cancel each other out, leaving you with (a) left over.
How do you do this without a calculator?
Use a big chart.
Basically impossible unless you got all the ratios memorized by mind. Invest in a cheap scientific calculator and that's all you will need for trig.
thank u ........
So THAT'S what those buttons on the calculator stand for!
What if its not illustrated? How can I determine what the given side is? if its adjacent or the opposite side?
when you first look at the question and are like, frack thats hard. but then he solves it like its as easy as breathing...
Since all calculators have different answers is it possible to write the 5 tan 65 to be the estimate of -7.35
5:49 whaaat? How does the hypotenus add up to 11???
10 squared + 5 squared is not even close to 11
Why for tan we multiplied the 5 but when finding out the cos we divided the "b" instead of multiplying by 5 as well?
Water Bottle because for tan it’s opp divided by adj and the adj had already been given so you only needed to find the opp. For cos you divide the adj by the hyp but we were given the adj and not the hyp, so you needed to solve for the hyp. sorry that no one answered your question until a year later 😔
6:30 - I don't understand how 65+90 equal 180 angle when the total is 155
180 - 155 = 25 w=25
will you still reffer to adj even if you got the opp?
I can't seem to understand how to know to divide it by 5 and how did you do that in the second problem what did you do to 5/b to make it to b=5/cos(65) am so slow plz help me did you inter change it???
Oh is it because they're both visible?
Life saver
What do u use to record?
TheSkillzrReal
6:13 my answr is
25
Watching at nigth in dreams sohhh cahhhh toaaaaaa😅😅😅
thx
What to do when you Sin or Cos ends up with a negative result?
Make sure your calculator is in degrees and nor radians.
so we can solve b by using sin (soh) and cos (cah)?....
no need, Im so amazed right now
OK so your always gonna use the adjacent acute angle to put with your trig identities?
Trig eazzzzzzzyzyzzzyzyzyzyzyzyzy!
How do I find sin cos tan without calculator?
what about the exact value, not the decimal? I need to know how to find the exact value without a calculator
Doing it without a calculator is just really time consuming, that's why teachers allow calculators for trig functions.
+Davis John I realize that but my teacher specifically asked us to find it without a calculator.
Avery Engstrom Oh ok, if that's the case then here: www.quora.com/How-do-I-do-a-trigonometry-question-without-a-calculator it explains pretty well on how to calculate a trigonometric function without the use of a calculator.
+Davis John Thank you, I appreciate the help :)
I got -7.35
Not me watching this the night before my final while I'm crying because I'm scared I'm gonna fail 😚✌️
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
The diner looks peaceful. The bright colors against the dark night street seem to invite us inside, to warm up and have a hot cup of coffee.
I think it looks lonely. I wouldn’t like sitting by myself in a restaurant, or knowing that people are watching me. The empty spaces around the figures makes them look isolated in the big room, as though lots of other people should be there to keep them company.
saving my finals fr
Solid vid
How do you do it without a calculator+
I took tan of 65 and got -7.35
Omi Josh Change the mode from RADIANS to DEGREES
Some of the questions only label the 90 degree angle how would I solve it with only the 90 degree angle?
5 times the tan 65 is not what you said it is according to ALL of the calculators I used to check it.
Yeah I am getting different answers on my calculator as well
Other calculator's answer is -7.35019128832 while other's are 10.72 !!!!!!!!!
change your mode to DEGREES. Its in RADIANS
thericate You are right, I changed that and now I get the 10.7. Thank you.
God bless you sir. I was wondering what the hell was going on
if my adj is 8.097861
do i need to make .0 to .1?
Ok I didn't get it
Who else uses this for last min study
Ben Fitzgerald lol I use it to teach me the entire lesson cause my teacher doesn't teach as well as this dude does
how do you solve for a side with a triangle that has no angles shown; or will you have to find he angles first?
Mathematics921 how would you know whether to multiply or divide the numbers?
I did the pythagorean theorem to solve for B you said add 5 square to 10.7 square and i got 25 + 21.4 = 46.4 i cant seem to figure out how to get 11.8 using the pythagorean theorem .. HELP !
10.7² is not 21.4...
who here in 2021 cause they have no motivation to pay attention in zoom.
me
me: ah yes I've got this
me, watching it again for the next problem:
:/
THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!
what if it has 2 angles?
why did he multiply the first equation by 5 but for the second he multiplies it by b and not 5
Augustina Oragwam because b was the denominator
I get trig now
i need help with domain and range
anyone want to help
Domain is all the x-coordinates. Range is all the Y-coordinates.. For example, look at the following sets of ordered pairs.
(3,6) (9,2) (4,5) (0,1)
So the domains are:-
3,9,4,and 0
And the ranges are:-
6,2,5,and 1
+demonspawn9 666 love your name
+Ourworld Claim you're right
frig trig
soh cah toa , lol
Fr fr